:root {
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px;
  --radius:8px; --radius-sm:6px; --gap:8px; --pad:12px;
  --row-h:36px; --tap:44px; --header-h:56px; --sidebar-w:224px; --tabbar-h:56px;
  --font-sans:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei UI","Noto Sans CJK SC",sans-serif;
  --font-num:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --fs-xs:.75rem; --fs-sm:.8125rem; --fs-md:.9375rem; --fs-lg:1.125rem; --fs-xl:1.5rem;
  --t-fast:150ms; --t-base:200ms;
}
:root[data-theme="dark"] {
  color-scheme:dark; --bg:#020617; --surface:#0E1223; --surface-2:#1A1E2F;
  --border:#334155; --border-strong:#64748B; --text:#F8FAFC; --muted:#94A3B8;
  --primary:#2563EB; --on-primary:#fff; --link:#60A5FA; --ring:#93C5FD;
  --green:#22C55E; --red:#EF4444; --amber:#F59E0B; --sky:#38BDF8;
}
:root[data-theme="light"] {
  color-scheme:light; --bg:#F8FAFC; --surface:#fff; --surface-2:#E8ECF1;
  --border:#E2E8F0; --border-strong:#64748B; --text:#0F172A; --muted:#475569;
  --primary:#1D4ED8; --on-primary:#fff; --link:#1D4ED8; --ring:#1D4ED8;
  --green:#166534; --red:#B91C1C; --amber:#92400E; --sky:#0369A1;
}
:root[data-quote="cn"] { --up:var(--red); --down:var(--green); }
:root[data-quote="intl"] { --up:var(--green); --down:var(--red); }
.up { color:var(--up); } .down { color:var(--down); }
.num { font-family:var(--font-num); font-variant-numeric:tabular-nums; }
.badge { background:var(--surface-2); background:color-mix(in srgb,var(--tone,var(--muted)) 10%,var(--surface)); color:var(--tone,var(--muted)); }
:focus-visible { outline:2px solid var(--ring); outline-offset:3px; }
@media (prefers-reduced-motion:reduce) {
  *,*::before,*::after { animation-duration:.01ms!important; transition-duration:.01ms!important; scroll-behavior:auto!important; }
}